Gas heating apparatus



J. W. -UNDEB WO0D. GAS HEATING APPARATUS. v

Patented Jan. 2, 1894.

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UNITED STATES PATENT Gr nch.

JAMEsw. UNDERWOOD, OF SHERIDAN, INDIANA.

GAS HEATING APPARATUS.

SPECIFICATION forming part of Letters Patent N 0. 512,132, dated January 2, 1894. Application filed April 5, 1893. Serial ll'o. 69,137. (No model.)

To all whom it may concern.-

Beit known that I, JAMES W. UNDERWOOD, a citizen of the United States, residing at Sheridan, in the county of Hamilton andState of Indiana, have invented certain new and useful Improvements in Gas Heating Apparatus;

and I do hereby declare the following to be a full, clear, and exact description'of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a partof this specification.

My invention relates to certain improvements in heating apparatuses such as are employed for heating rooms in lieu of coal or gas stoves, and its object is to provide an apparatus of this character which shall be of a simple and inexpensive construction, and one which may be conveniently and safely operated and which shall not be an obstruction to the free use of the room to be heated, all as will be hereinafter fully set forth.

The novel features of my invention will be carefully defined in the claims.

In the accompanying drawings illustrating my invention, Figure 1 is a vertical sectional view through the floor of the room which it is desired to heat by my improved apparatus, the heater being seen in elevation injposition for use, and Fig. 2 is a similar view showing the device in section. Fig. 3 is a plan view of the device. Fig. 4 is a detail view which will be referred to hereinafter.

In the views X represents the floor of the room, which is provided with an aperture 00, havinga suitable curb about its edge to which is hinged at one side, a register Y of openwork cast iron such as is usually provided for furnace heating fiues. This register is shown in Fig. 2 as raised on its hinges to a substantially vertical position.

Z is one of the walls of the house, and z is The opening win the floor is arranged close up to the wall Z by preference and the curb of said opening is provided in its interior with a pro jecting ledge 00.

A is a metal casing preferably of square or rectangular cross section provided about its upper edges with projecting flanges a adapted to engage and rest upon the ledges w of the curbing of aperture :0, whereby said casing A is held in position below the fioor of the room as clearly seen in Figs. 1 and 2 of the drawings. p

B is an elbow pipe passing through an opening in the wall Z into the flue .2, and having its vertical branch within the casing A, which it enters near the lower end thereof. Braces or stays of any suitable kind are provided for holding pipe B in its vertical position as seen in the drawings. The gas supply pipe 0 enters the casing A also near the lower end thereof but at the side opposite to the pipe B. A valve 0 is provided in the gas supply pipe outside the casing and a vertical rod 0' is provided for turning said valve the upper end of said rod passing through the floor adjacent to the register Y and being provided with a handle as clearly seen. Within the casing A the gas pipe 0 is also bent up ver tic-ally and is provided at its extremity with aburner O of fire-clay or other durable material.

D is a combustion chamber formed with a central horizontal portion at and two depending arms d, d at its ends. The arm (1' hasa diameter equal to the internal diameter of the vertical branch of pipe B into which it fits and is adapted to slide. The arm 01 is of a somewhat larger diameter than the arm (1' and is closed at its base so as to be practically air and gas tight. 1

E is a transverse brace or strut arrange midway of the chamber formed by arm d through which passes a vertical burner tube bearing a burner O of fire-clay or other suitable kind. This burner tubeF extends down through the'closed bottom of the arm 01 and incloses the vertical branch of the gas supply pipe 0, than which it is slightly larger in diameter so that an annular aperture is provided at its lower end for the entrance of air to the burner to support combustion of the gas escaping at the tip of pipe 0.

At about the center of the upper surface of the horizontal portion 61 of the combustion chamber D is provided a ring or loop 9 adapted to receive a hook on the lower end of an operating rod G seen in detail in Fig. 4, by means of which the chamber D may be raised or lowered, the Vertical arms d, 61 thereof f provided in the outer side of the arm d of chamberl) maybe opened and the gas may be lighted at theburner O.'-

By providing the chamber D with close walls and making its arm d of a diameter to snuglyfit :the pipe 13, and the pipe E of- :the prop'erfliametento admit only suffi'cient air; to;su,ppor-t, combustion, .it will be seen that shouldthe gas becut oft-at anygti ne beyond the valve 0, and said valve remain; open thea escape of the gasfromrpipe when again turnedon would,nottakeplace into the room herebyzan expl ionimight occur, but would be ledpffitothechimney. For this purpose I also. makeithe.doonfair-tighh 1 rod h, t,he, lower end of which plays through an eyeor pip t.B--

It willbe seen that; my invention, is s;usceptibleof considerable. modification without materialdeparture from, its -,principljest- 51 101: instance, the casing A may-be omitted en ti-relyandthedevice besupported on the wall Z, or

said. wall may be hollowed outato receive the. parts inwhich case it would take thelplaceofr the casing.,. The, chamber might also. beprovided with an integral handle in lieu-ofthus aeshbd'm'y invention, I

each of said pipes having a vertical branch,

In ,order to steadyjthe combustionrchamber Din its-verticalmovement I attach to it at one, end, of, its. horizontal 1 portion doa spring-u a heating apparatus, the combinationwith the gas supply pipe and an outlet pipe,

of a combustion chamber havingan arm slidingly mounted on andcomn'runicating with each of said tubes, substantially as set forth.

2. In a heating apparatus, the combination with a gas supply pipe and an outlet pipe,

each of said-pipes having a vertical branch,

of a combustion chamber having an arm slidingly mounted on and communicating with :"eachtotsaid pipes, said chamber being also provided with a door and an operating handle, substantially as set forth.

; .3. Inva heating; apparatus, the combination with a gas supply pipe and an outlet pipe, ieach of'said pipes having a vertical branch, of a combustion chamber having an arm slidingly mounted oiraand communicating with the outlet pipe,:a bunnier: tube :mounted on said combustion-chamberand having aburner within the same,'-,th-e lower; end of-said' burner tube inclosing the vertical branch-of-the gas supply pipe, substantially as set forth t 3 @145. In a @heatin g apparatus, the combin ation with'the curb having a hin-ged registerand having an ,-in-terior--.projecting "ledge',--of ,the

I vcasing having, I a projecting -flange engagingthe ledge of wthe;.curb,-the. gas pipe provided withaa valve-and having atventicalbranch within the casing, theoutlet tu be adaptedto communicate with the flue and-having-aVertical .braach within: said casing, the combustion Jchamloer. having depending Ear-ms; one of wliichslides into ltheupp-ereend of the vverti-z cal branch of 1: the outlet tube, the other arm of 1. said combustion chamber being provided with a closed. bottom, the brace, the burner 1 tubemounted; insaid brace and extending through theclosed-bottom of the arm of the combustion achamher the lowerend of said burnert-ube inclosing; the vertical branch of the gasnpipe, substantially as set forth.

In testimony whereof-I affix my signature in presence of two witnesses.

J. W. UNDERwooD.

Witnesses: Q

O. W.- GRIFFIN, WM. W. LONG. 

